Double-layer thread engagement locking sealing device and use method thereof

Abstract

The present invention belongs to the technical field of heated tobacco articles, and particularly relates to a double-layer threaded engagement locking sealing device and a method for using the same. The sealing device comprises: a cigarette cup (1) and an outer sleeve (2); wherein the cigarette cup (1) is hollow cylindrical, sealed at the bottom, and the mouth of the cigarette cup (1) is provided with at least two axial gaps with upper ends open at intervals, forming at least two side grooves (12); the outer sleeve (2) is sleeved on the periphery of the cigarette cup (1) and is threadedly connected to the cigarette cup (1). The present invention designs a double-layer cigarette accommodating chamber for the first time, wherein an outer sleeve is provided outside the cigarette cup, and the two are threadedly engaged. During the process of threaded connection between the outer sleeve and the cigarette cup, the inner diameter of the cigarette cup is reduced, so that the tobacco section of the cigarette can be clamped and sealed. During the smoking process, the heating temperature can be greatly increased, the aroma components in the tobacco are released more fully, and are easy to release continuously, and the taste is closer to traditional tobacco, which is more easily accepted by traditional smokers.

Description

Technical Field

[0001] The invention belongs to the technical field of heated smoking articles, and in particular relates to a double-layer threaded engagement locking sealing device and a use method thereof. Background Art

[0002] At present, most heat-not-burn cigarettes use air as the carrier of smoke. In order to ensure that the tobacco does not burn, the heating temperature applied is usually low, generally not exceeding 300°C. Compared with traditional cigarettes, the tobacco aroma components of new heat-not-burn cigarettes are difficult to be fully released, and the smoke volume is insufficient. Therefore, this type of cigarette is difficult to be accepted by traditional smokers. However, if the heating temperature is increased, the tobacco substances will burn due to the presence of oxygen in the smoking device.

[0003] The present invention is proposed to solve the above-mentioned problems. Summary of the invention

[0004] A first aspect of the present invention provides a double-layer threaded engagement locking sealing device, the sealing device comprising:

[0005] Cigarette cup 1, outer sleeve 2;

[0006] The cigarette cup 1 is hollow cylindrical, sealed at the bottom, and has an external thread 11 at the bottom of the outer wall. The mouth of the cigarette cup 1 is spaced apart by at least two axial gaps with upper ends opened, forming at least two side grooves 12.

[0007] The outer sleeve 2 is a hollow cylinder, and the inner wall bottom is provided with an inner thread 22 matching the outer thread 11. The upper end of the outer sleeve 2 is provided with an inner flange 21. The inner wall of the inner flange 21 is a conical ring with a smaller diameter at the top and a larger diameter at the bottom. The height of the outer sleeve 2 is greater than the cigarette cup 1.

[0008] The connection between the two is:

[0009] The outer sleeve 2 is sleeved on the periphery of the cigarette cup 1 by threaded connection, and the inner flange 21 at least partially surrounds the upper end of the cigarette cup 1 .

[0010] Preferably, the maximum inner diameter of the inner flange 21 is the same as the inner diameter of the outer sleeve 2 , that is, there is a smooth transition between the inner flange 21 and the outer sleeve 2 .

[0011] Preferably, an annular elastic sealing member 3 is provided on the inner side of the inner flange 21 .

[0012] Preferably, the material of the annular seal 3 is selected from rubber, silicone, PEEK polyetheretherketone, or PP polypropylene.

[0013] The second aspect of the present invention provides a method for using the sealing device described in the first aspect, comprising the following steps: first, remove the outer sleeve 2, insert the smoking article 9 into the cigarette cup 1 to set the position, and then sleeve the outer sleeve 2 on the outside of the cigarette cup 1 and tighten it through threads. The outer sleeve 2 moves downward during the tightening process, and the inner flange 21 at the upper end of the outer sleeve 2 gradually clamps the upper end of the cigarette cup 1, so that the gap of the side groove 12 becomes narrower, forcing the upper end of the cigarette cup 1 to hold the smoking article 9 tightly.

[0014] Preferably, the annular elastic seal 3 inside the inner flange 21 further clamps the smoking article 9 and seals the gap between the smoking article 9 and the cigarette cup 1 .

[0015] Before insertion, the inner diameter of the cigarette cup 1 is larger than the outer diameter of the smoking article 9, which facilitates the insertion of the cigarette; after the smoking article 9 is inserted, when the outer sleeve 2 is tightened downward, the gap of the side groove 12 is squeezed and reduced, and at this time, the inner diameter of the upper end of the cigarette cup 1 is smaller, slightly smaller than the outer diameter of the smoking article 9. The inner diameter of the outer sleeve 2 is slightly larger than the outer diameter of the cigarette cup 1.

[0016] The present invention has the following beneficial effects:

[0017] 1. The general cigarette accommodating chamber is a single-layer structure. The present invention designs a double-layer cigarette accommodating chamber for the first time, in which an outer sleeve is arranged outside the cigarette cup, and the two are engaged by threads. In the process of threaded connection between the outer sleeve and the cigarette cup, the conical annular inner flange 21 at the upper end of the outer sleeve 2 clamps the side groove 12 at the upper end of the cigarette cup 1, and the inner diameter of the cigarette cup is reduced, so that the tobacco section of the cigarette can be clamped and sealed. During the smoking process, since the released fresh smoke replaces the internal gas, the oxygen content in the smoking device will decrease with the heating process, so the heating temperature can be greatly increased, the aroma components in the tobacco are released more fully, and are easy to release continuously. The taste is closer to traditional tobacco, and it is easier to be accepted by traditional smokers.

[0018] 2. In the preferred technical solution, an annular elastic sealing member 3 is further provided inside the inner flange 21 of the present invention to further seal the gap between the cigarette cup 1 and the smoking product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a double-layer threaded engagement locking seal device in Example 1 after being inserted into a smoking article.

[0020] Figure 2 This is a schematic diagram of the cigarette cup 1 in Example 1.

[0021] Figure 3 Schematic diagram of the outer sleeve 2 in Example 1.

[0022] Figure 4 Schematic diagram of the annular elastic seal 3 of Example 1.

[0023] List of reference numerals:

[0024] 1. Cigarette cup, 2. Outer sleeve, 21. Inner flange, 22. Inner thread, 3. Annular elastic sealing member, 4. Smoking product. DETAILED DESCRIPTION

[0025] The content of the present invention is further explained below through specific implementation examples. Example 1

[0026] like Figure 1-3 A double-layer threaded engagement locking sealing device mainly comprises a cigarette cup 1, an outer sleeve 2 and an annular elastic sealing member 3.

[0027] The cigarette cup 1 is a cup-shaped structure with a bottom, which is used to heat the smoking product 9. An external thread 11 is arranged on the outer side of one end of the cigarette cup 1 close to the bottom of the cup, and a side groove 12 is formed by hollowing out the cup mouth on the other side. The setting of the side groove 12 facilitates the smoking product 9 to be inserted into the cigarette cup 1 or to be extracted from the cigarette cup 1.

[0028] The outer side of the cigarette cup 1 is also provided with an outer sleeve 2, which is a hollow cylindrical shape. An inner thread 22 is provided on the inner side of one end of the outer sleeve 2, which meshes with the outer thread 11, and an inner flange 21 is provided on the other side.

[0029] The inner wall of the inner flange 21 is a tapered ring with a smaller diameter at the top and a larger diameter at the bottom. The maximum inner diameter of the inner flange 21 is the same as the inner diameter of the outer sleeve 2, that is, there is a smooth transition between the two. The lower part of the inner flange 21 wraps around the upper end edge groove 12 of the cigarette cup 1.

[0030] An annular seal 3 is disposed in the space formed by the inner side of the inner flange 21 , the end of the cigarette cup 1 , and the smoking article 9 , so that a closed space is formed among the cigarette cup 1 , the seal 3 and the smoking article 9 .

[0031] The annular elastic sealing member 3 is made of rubber.

[0032] The method of using the above sealing device is as follows:

[0033] Locking process: First remove the outer sleeve 2, insert the smoking article 9 into the cigarette cup 1 to set the position, then put the outer sleeve 2 on the outside of the cigarette cup 1 and tighten it through threads. The outer sleeve 2 moves downward during the tightening process, and the inner flange 21 at the upper end of the outer sleeve 2 gradually clamps the upper end of the cigarette cup 1, which will narrow the gap of the side groove 12 and force the cigarette cup 1 to hold the smoking article 9 tightly. The annular elastic seal 3 seals the gap between the smoking article 9 and the cigarette cup 1, and the outside air cannot enter the cigarette cup 1. Of course, if you zoom in and see between the cigarette cup 1 and the smoking article 9, there may still be a certain gap, such as Figure 1 As shown, the present embodiment 1 mainly relies on the annular elastic sealing member 3 to seal the air intake gap between the smoking article 9 and the upper end of the cigarette cup 1 .

[0034] Of course, in the case where the sealing requirement is not strict, it can be considered that when the inner flange 21 at the upper end of the outer sleeve 2 gradually clamps the upper end of the cigarette cup 1, the cigarette cup 1 has been sealed.

[0035] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for using a double-layer threaded engagement locking seal device, characterized in that: The sealing device comprises: a cigarette cup (1) and an outer sleeve (2); The cigarette cup (1) is hollow cylindrical, with a sealed bottom, and an outer wall bottom with an external thread (11). The mouth of the cigarette cup (1) is provided with at least two axial gaps with upper ends open at intervals, forming at least two side grooves (12); The outer sleeve (2) is in the shape of a hollow cylinder, and the bottom of the inner wall is provided with an inner thread (22) matching the outer thread (11); the upper end of the outer sleeve (2) is provided with an inner flange (21); the inner wall of the inner flange (21) is a conical ring with a smaller diameter at the top and a larger diameter at the bottom; the height of the outer sleeve (2) is greater than that of the cigarette cup (1); The connection between the two is: The outer sleeve (2) is sleeved on the outer periphery of the cigarette cup (1) by means of a threaded connection, and the inner flange (21) at least partially surrounds the upper end of the cigarette cup (1); An annular elastic sealing member (3) is provided on the inner side of the inner flange (21); The maximum diameter of the inner flange (21) is the same as the inner diameter of the outer sleeve (2), that is, there is a smooth transition between the inner flange (21) and the outer sleeve (2); The method of use comprises the following steps: firstly, removing the outer sleeve (2), inserting the smoking article (9) into the cigarette cup (1) to set the position, then sleeve the outer sleeve (2) onto the outside of the cigarette cup (1), and tighten it by means of threads, wherein the outer sleeve (2) moves downward during the tightening process, and the inner flange (21) at the upper end of the outer sleeve (2) gradually clamps the upper end of the cigarette cup (1), thereby narrowing the gap of the side groove (12), and forcing the upper end of the cigarette cup (1) to hold the smoking article (9) tightly.

2. The method for using the double-layer thread engagement locking seal device according to claim 1, characterized in that: The material of the annular elastic sealing member (3) is selected from rubber, silicone, PEEK or PP.

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